Fuel-vaporizing attachment for internal-combustion engines



Mar. 13, 1923. 1,448,368.

H. TIMIAN.

FUEL VAPORIZING ATTACHMENT FOR INTERNAL COMBUSTION ENGINES. FILED JULY '23. 1921.

N K i Patented Mar. 13, 1923.

masses HAROLD TIMIAN, 0F KOKQMO, INDIANA.

FUEL-VAPORIZING ATTACHMENT r0 rnrnnnnn-ooivrnosrron ENGINES.

Application filed July 23,1921. Serial no. 4811,60.

To all whomit may concern:

Be it known that I, Hnnonn H. TIMIAN, a citizenof the United States of America, residing at Kokomo, in the county of Howard and State of Indiana, have invented certain new and useful Improvements in Fuel-vaporizing Attachments for Internail-Combustion Engines, of which the following is a specification, reference being had therein to the accompanying drawings;

The invention relates to fuel Vaporizers for internal combustion engines and-'has for its object the obtaining of an exceedingly simple construction whichiszattachable to any construction of multiscyllnder engine having the inlet/and exhaust manlfolds on the same side. To this end the invention consists in a member which is insertable between the manifolds and the engine block through which the heat" of the exhaust gases is transferred to the incoming mixture. The invention. further consists in so constructing the member that the amount of heat transferred is greatest when the engine is idlingor running at low speed, lessening at higher speeds.

In the drawings:

Figure 1 1s a horizontal section through a portion of the engine block andmanifolds showing my attachment in position;

Figure 2 is a front elevation of the attachment; Y

Figure 3 is a cross-section therethrough onthe line 3-3 of Figure 1; i I

While my improvement is applicable to various types of multi-cylinder internal combustion engines, I! have shown the specific construction applicable to a Ford car, in which A is the engine block, B the intake manifold, and C the exhaust manifold. D are clamping yokes for holding the manifolds upon the block, and E arethe tap bolts for securing said clamps My attachment comprises a hollow member F, which is insertable between the manifolds and the block, and of a length to extend between andrcover a pair of the port openings G and G" in the blockfor the ex haust gasesfas well as the intermediate port opening 1-1 for the intake :g'ases. This member is preferably is provided with the central sage I which registers with the port-opening H and the corresponding portion of the intake manifold B, this passage being surrounded by a wall which separates the same from the chamber within the casting. The member is further provided with apertures J and J for registration with the' ports G and G and the. corresponding portions of the exhaust manifold C. open into the chamber within the hollow a cored castinglj It trans-verse pas- I These aperturescasting through which communication is establishedbetween the ports G and G, said passage surrounding the wall forming the passage I. The apertures J and J" on the side .which abuts against the engine block are preferably of the full area of the ports G and G.',.but the apertures on the opposite side of the member F are preferably slightly restricted as by the baffle segments K and K.

These act as deflectors forcausing a portion of the. gases haust port in the chamber over to low member exhaust manifold at that point." The 'member F is further apertured at Land L for passage of the clamping screws E andthese apertures are surrounded by walls M and M block to pass through the the other end of the holdischarged from "the exa and through the po t in the? which separate the same from the chamber 1 within the casting.

Witlrthe construction as described, to attach the vaporizer-tothe engine'it is merely necessary to loosen the clamping bolts'E, separating the manifolds from the block and inserting the member F therebetween. The bolts E are then replaced and are tightened to clamp the manifolds firmly against the member F and the latter against the block. In operation," when the engine is. idling or operating at low sp'eeds, the exhaust gases which are alternately discharged through the ports GandG' will have a portion thereof deflected by the segment K '01 K, .whichportion will pass through the chamber, surrounding the passa'gel and over W'h'BI'Q'll? will :be discharged into the manifoldj rTheigaseswthus passing through the to the other exhaust port f,

chamber will transfer heat to the wall sur rounding the passage I so that the indrawn combustible mixture will be heated and the liquid fuel vaporized. To facilitate this vaporization of the liquid the port I of the passage I, which. is upon the block side of the member F, is of the full area of the port H in the block, while the port I on the opposite side of the member vF is of the area of the manifold opening which is less than that of the port 1-1. This will cause an eddying of the intake gases in the passage 1, which will bring the liquid content of the mixture against the heated walls of said passage, 1 causing vaporization.

When the speed of the engine is increased and the time interval between impulses from the different cylinders is lessened, the pressure within the exhaust manifold becomes more nearly uniform throughout its length, which will lessen the amount of gas deflected through the chamber in the member F. In other words when the engine is operating at higher speeds, this differential lessens so that the gases do not surge through the member F. Consequently, the amount of heat transferred to the intake gases is lessened, which is precisely the result desired when the engine is operating at high speeds.

With a four cylinder engine, such as the Ford, there are usually six ports in the block, four of which'are for the exhaustgases and two for the intake gases. W'i-thsuch a construction two of the members F are used, each one embracing a pair of, the exhaust ports and a single intake port. I also preferably make the member F of a cross-section slightly tapering from top to bottom so that the position of the carburetor will not be greatly changed by the lateral displacement of the intake manifold hat I claim as my invention is:

1. The combination with a multi-cylinder internal combustion engine and intake and exhaust manifolds therefor, of a chambered member forming an auxiliary exhaust passage and insertable between said manifolds and engine for transferring heat from the exhaust gases to the fuel mixture.

2. The combination with a multi-cylinder internal combustion engine and intake and manifolds therefor, of a hollow forming an auxiliary exhaust pasexhaust member sage and insertable between said manifolds and the engine having a wall for separating the fuel mixture and the exhaust gases through I which heat may be transferred from the one to the other.

. 3. The combination with a multi-cylinder internal combustion engine and intake and exhaust manifolds therefor, of a member insertable between said manifolds and the engine and embracing a pair of exhaust ports and an intake port, said member being hollow and establishing communication between said exhaust ports and being provided with a wall for separating said passage from the intake passage through which heat is transferable.

i. The combination with a multi-cylinder internal combustion engine and intake and exhaust manifolds therefor, of a member insertable between said manifolds and the engine embracing a pair of exhaust ports, and an intermediate intake port, said member being hollow to form a connecting passage between said exhaust ports and having a transverse intake passage therethrough formed by a wall which is surrounded by said exhaust passage.

5. The combination with a block of a multi-cylinder engine having a plurality of exhaust ports therein and an intermediate intake port, intake and exhaust manifolds, and clamping means for securing said manifolds to the block, of a member insertable between said manifolds and block embracing a pair of said exhaust ports and the intermediate intake port, said member being hollow and forming a transfer passage between said exhaust ports with an intake passage surrounded by said exhaust passage and apertures through said member separated from said exhaust passage for the passage of the clamping means forsaid manifolds.

6. A vaporizing attachment for internal combustion engines comprising a hollow member insertable between the'engine block and the intake and exhaust manifolds therefor, said member embracing a pair of exhaust ports and forming a connecting passage there-between and being further provided with an intake passage separated from said exhaust passage by a wall through which heat may be transferred, and baffling means for deflecting a portion of the gases from direct: passage from the block to the manifold, whereby said gases will surge through said hollow member and transfer their heat to the intake gases.

7. A vaporizing attachment for internal combustion engines comprising a hollow and the intake and exhaust manifolds, communicating with a chamber Within said said member embracing a plurality of hollow member Which surrounds said annu- 0- exhaust ports and an intermediate inlar Wall, and balfies for theexhaust ports take port, and being provided with communicating with the manifold for de- 5 registering apertures for the ports in the fleeting a portion of the gases through said block and manifolds, the apertures for the hollow member. I intake port being connected by an annular In testimony whereof I affix my signature. 15 wall and the apertures for the exhaust port HAROLD H. TIMIAN. 

